Vaccines Intro Flashcards
(30 cards)
What is the definition of variolation
use the sick to vaccinate the well (a less harmful strain)
What did Edward Jenner do
used a process of infecting people with cowpox that could prevent smallpox
What did Louis Pasteur do
coined the term Vaccine
What is the definition of a vaccine
prepare the immune system for battle by giving the system as close a look at the real thing as is possible without exposing the vaccine recipient to undo risk
What is the purpose of vaccines
stimulate the adaptive immune system to create memory
T/F for memory Killer T cells to be made the attacker must infect an APC
TRUE!
What are the 3 classes of vaccines
Non-infectious
Attenuated
Carrier
What are the characteristics of the dream vaccine
oral ingestion, cheap, 1 dose, stable at room temp
What is an attenuated vaccine
a living organism (usually a virus), whose virulence and ability to replicate are diminished
What is a killed vaccine
a dead organism
What is a Subunit vaccine
parts of an organism
- virus like particles
- toxoids
- recombinant (genetic modifications)
what is a Conjugated vaccine
combine different antigens to improve response (CARB antigens)
what is a Carrier vaccine
genetically modified LIVE virus
what is a DNA vaccine
naked DNA extracted from a pathogen. host takes DNA and makes the proteins
What are the 4 types of Non-infectious vaccines
- Killed
- Subunit
- Conjugated
- DNA
does non-infectious vaccines cause the body to make memory B cells and Helper T cells
YES
are memory Killer T cells made with non-infectious vaccines
NO (unless it has cross presented)
What are 2 examples of Killed vaccine
- Polio vaccine
2. Typhoid vaccine
how are microbes killed for a vaccine
- chemicals
- heat
- radiation
What are 3 examples of Subunit vaccines
- Hep B vaccine
- Tetanus toxoid
- Acellular pertussis vaccine
What is 1 example of a conjugated vaccine
- Hib vaccine
why are 2 carbohydrate microbes joined together in a conjugated vaccine
to make it more “visible” to immune system
What are 2 examples of the DNA vaccine
- Zika vaccine
2. West Nile Virus
why are non-infectious vaccines safe for us
they will not infect our cells (except this type of vaccine does not work with Measles and Mumps)